make AbstractBuiltinTool serializable

Author: Kludex

pydantic_ai_slim/pydantic_ai/builtin_tools.py

@@ -9,6 +9,7 @@
 __all__ = ('AbstractBuiltinTool', 'WebSearchTool', 'UserLocation')
 
 
+@dataclass
 class AbstractBuiltinTool(ABC):
     """A builtin tool that can be used by an agent.
 

tests/models/test_model_request_parameters.py

@@ -7,6 +7,7 @@ def test_model_request_parameters_are_serializable():
     params = ModelRequestParameters(function_tools=[], allow_text_output=False, output_tools=[])
     assert TypeAdapter(ModelRequestParameters).dump_python(params) == {
         'function_tools': [],
+        'builtin_tools': [],
         'allow_text_output': False,
         'output_tools': [],
     }